Silo chute



Jan. 11, 1938.

w. w. GURNEY 2, 4

SILO CHUTE Filed April 29, 1957 5 Sheets-Sheet 1 I n venior 22:22.- fzzvz q A iiomeys Jan. 11, 1938. w. GURNEY- 2,105,145

' S ILO CHUTE Filed April 29, 1937 3 Sheets-Sheet 3 JZiWTaan A/ fiuwm Attorneys siloprogresses, the sections interfittingwithone Patented'Jan. 11, 1938 PATENT OFF-m- SILO CHUTE William W; Gurney, Winona, Minn, assignor to Madison. Silo Company, Madison, Wis., a corpora-tion of Wisconsin Application April 29, 1937, Serial No.139,790

8 Claims.

My inventionrelates to silos, and more particularly to chutes therefor.

Byway of explanation, it is the practice to construct one type of silo of concrete staves interfitting attheir edges and concrete door frames interfitting at their edges with the adjacent staves and with each other.

The primary object of my invention is to equip a siloof the above identified type with a metal chute enclosingthe door frames of the same and jointed to the silo structure so as to exclude airand rain'at its juncture therewith.

Another ob-jectis to equip a silo-of this construction with asectional chute adapted to be built up section by section as the building of the.

another and with the staves and door frames so thatsaid; sections are supportedentirely by the silo structure and each other, thereby obviating the necessity for using bolts, angleirons, hangers, or similar attaching instrumentalities.

Still another object of my invention is to provide a chute for such silos which is strong, durable, practically impervious to water and to rain,-

easily assembled as regards its component parts, readily incorporated with the silo structures and comparatively inexpensive to manufacture.

Other and subordinate objects will become readily apparent from the following description and claims when read with reference to the drawings, accompanying and forming part of this specification.

In said drawings: Figure 1 is a view in side elevation of a silo of the type with which my invention is particularly concerned and equipped with a chute construoted in accordance with my invention;

Figure 2'is a fragmentary view partly in vertical section and partly in elevation taken on the line 2-2 of Figure 1, looking in the direction indicated by the arrows and drawn to an enlarged scale.

with which my invention is particularly concerned, such silos are constructed by building up the aforementioned concrete staves, designated I, in tiers 2, to form a circularstructure, the staves of alternate tiers being staggered with're spect to those of intermediate tiers as will be understood P The door frames 3, which are rectangular in shape, are disposed on top of each other in edge to edge relation between two opposite tiers, as shown in Figure 2, and keyed to, or interfitted with said opposed tiers by means of vertical tongue and groove connections 4 and 5 between the sides of said frame and the staves I of said tiers respectively. Itmay be mentioned at this point, that the staves I of each tier 2 are interfitted with those of the adjacent tiers in the same" manner as the doorframes 3 and theadjoining tiers.

The describedsilo structure is reinforced by the usual vertically spaced reinforcing hoops 6, as shown in Figure 1, which, it may be mentioned, are disposed intermediate the doorways represented at 1 or in other words, opposite the junctures of the doorframes 3. According to my inventionthe described silo is equipped with a sheet metal ohute 9, preferably of steel, comprising sections 10 of substantially the same height as the doorframes 3 and of U- shape in cross section, arranged one on top of the other in' edge to edge relation, to form a continuous conduit covering as many doorways I as desired. The mating top and bottom edges'of the sections H] are jointed together by means of interfitting edge beads, the top of each section In being provided with a small edge exterior bead II and the bottom edge with a larger bead l2 overlapping the smaller bead ll of the subjacent section. V

The vertical edges of each section H), as best shown in Figure 3, are rolled, or crimped, to provide a pair of longitudinally extending marginal beads I3 on. said edges, respectively, interposed between the aforementioned tongue and groove connections 6 and 5, whereby said sections are interfitted with said frames and the adjacent tiers 2 to be supported thereby and also by each other, as will be clear. Each section 10 at the corners thereof, formed by the vertical and horizontal edges, is notched, as shown at id in Figure 5, so that the notches of mating sections form recesses, as at l5, for accommodating the appropriate hoop 6 or in other words clearing the latter. The top of the chute 9 may be closed in any suitable manner as represented at i5.

It will be understood that the before mentioned tongue and groove connection, 4 and 5, may be of different shapes in different makes of staves. In Figure 3, said connection is shown as segmental and the beads 13 are accordingly correspondingly shaped. However, it is to be understood that said beads may vary in cross-sectional contour according to the variations in the shape of said connection. For instance, as shown in Figure 6, the tongue I6 and. the groove I! are semicircular and the bead l8 correspondingly shaped, whereas, in Figure 7, the tongue l9 and groove 20 are tapered and the head 2! correspondingly formed.

The foregoing description will, it is believed, suflice to impart a clear understanding of the construction and advantages of my invention.

It is to be understood, however, that the present disclosure is illustrative rather than restrictive, and that modifications, other than those disclosed, may be resorted to without departing from the inventive concept, hence, right is herein reserved to such other modifications of details described as fall within the scope of the appended claims.

What I claim is:

l. The combination with a silo having superposed door frames, of a sheet metal chute having vertical side edges built into the wall of the silo on opposite sides of said frames respectively.

2. The combination with a silo having superposed door frames, of a sheet metal chute having vertical side edges built into the wall of the silo upon opposite sides of said frames, respectively, and comprising sections superposed on one another in edge to edge interfitting relation.

3. The combination with a silo having superposed door frames, and hoops surrounding the silo intermediate said frames, respectively, of a sheet metal chute having vertical side edges built into the wall of the silo upon opposite sides of said frames, respectively, and comprising sections superposed on one another in edge to edge interfitting relation, said sections being of substantially the same length as the door frames, respectively, to register therewith, and having opposed notched corners for fitting over said hoops.

4. The combination with a silo having superposed door frames, of a sheet metal chute having vertical side edges built into the wall of the silo on opposite sides of said frames, respectively, said edges and walls having vertically extending mating key parts Within said wall coacting to lock said edges in said wall.

5. The combination with a silo having superposed door frames, of a sheet metal chute comprising vertical side edges built into the wall of said silo upon opposite sides of said frames, re spectively, and comprising sections superposed in edge to edge mating relation, said sections comprising edge beads at their mating edges interfitting in interlocking relation.

6. The combination with a silo having a cement wall and superposed cement door frames, of a sheet metal chute having vertical side edges built into said Wall upon opposite sides of said frames, respectively, and having a pair of marginal beads extending along said edges, respectively, within said Wall.

7. The combination with a silo having a cement wall and superposed cement door frames, of a sheet metal chute having vertical side edges built into said wall upon opposite sides of said frames, respectively, and having a pair of marginal beads extending along said edges, respectively, within said wall, said chute comprising sections superposed one upon another in edge to edge interfitting relation.

8. The combination with a silo having a cement wall and superposed cement door frames, of a sheet metal chute having vertical side edges built into said wall upon opposite sides of said frames, respectively, and having a pair of marginal beads extending along said edges, respectively, within said wall, said chute comprising sections superposed one upon another in edge to edge mating relation, adjoining upper and lower sections at their mating edges being provided with a pair of interfitting beads, the bead on the upper section overlapping the head on the lower section.

WILLIAM W. GURNEY. 

